[HugLycan]

---

[github-actions]

Welcome new contributor!

Thank you for contributing to Mathlib! If you haven't done so already, please review our contribution guidelines, as well as the style guide and naming conventions. In particular, we kindly remind contributors that we have guidelines regarding the use of AI when making pull requests.

We use a review queue to manage reviews. If your PR does not appear there, it is probably because it is not successfully building (i.e., it doesn't have a green checkmark), has the awaiting-author tag, or another reason described in the Lifecycle of a PR. The review dashboard has a dedicated webpage which shows whether your PR is on the review queue, and (if not), why.

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[github-actions]

PR summary 58cc9c8f96

Import changes for modified files

No significant changes to the import graph

Import changes for all files

Files	Import difference

---

Declarations diff (regex)

+ CachedResult
+ CachedResult.toString
+ N
+ PositivityM
+ State
+ cacheFailure
+ cacheInfo
+ cacheStrictness
+ catchNone'
+ findCached?

You can run this locally as follows

## from your `mathlib4` directory:
git clone https://github.com/leanprover-community/mathlib-ci.git ../mathlib-ci

## summary with just the declaration names:
../mathlib-ci/scripts/pr_summary/declarations_diff.sh <optional_commit>

## more verbose report:
../mathlib-ci/scripts/pr_summary/declarations_diff.sh long <optional_commit>

The doc-module for scripts/pr_summary/declarations_diff.sh in the mathlib-ci repository contains some details about this script.

Declarations diff (Lean -- stale, waiting for the new build)

✅ Lean-aware diff — post-build, computed from the Lean environment (commit 9060034).

• +48 new declarations
• −0 removed declarations

+Mathlib.Meta.Positivity.CachedResult
+Mathlib.Meta.Positivity.CachedResult.casesOn
+Mathlib.Meta.Positivity.CachedResult.ctorElim
+Mathlib.Meta.Positivity.CachedResult.ctorElimType
+Mathlib.Meta.Positivity.CachedResult.ctorIdx
+Mathlib.Meta.Positivity.CachedResult.noConfusion
+Mathlib.Meta.Positivity.CachedResult.noConfusionType
+Mathlib.Meta.Positivity.CachedResult.nonnegative
+Mathlib.Meta.Positivity.CachedResult.nonnegative.elim
+Mathlib.Meta.Positivity.CachedResult.nonnegative.inj
+Mathlib.Meta.Positivity.CachedResult.nonnegative.injEq
+Mathlib.Meta.Positivity.CachedResult.nonnegative.noConfusion
+Mathlib.Meta.Positivity.CachedResult.nonnegative.sizeOf_spec
+Mathlib.Meta.Positivity.CachedResult.nonzero
+Mathlib.Meta.Positivity.CachedResult.nonzero.elim
+Mathlib.Meta.Positivity.CachedResult.nonzero.inj
+Mathlib.Meta.Positivity.CachedResult.nonzero.injEq
+Mathlib.Meta.Positivity.CachedResult.nonzero.noConfusion
+Mathlib.Meta.Positivity.CachedResult.nonzero.sizeOf_spec
+Mathlib.Meta.Positivity.CachedResult.positive
+Mathlib.Meta.Positivity.CachedResult.positive.elim
+Mathlib.Meta.Positivity.CachedResult.positive.inj
+Mathlib.Meta.Positivity.CachedResult.positive.injEq
+Mathlib.Meta.Positivity.CachedResult.positive.noConfusion
+Mathlib.Meta.Positivity.CachedResult.positive.sizeOf_spec
+Mathlib.Meta.Positivity.CachedResult.rec
+Mathlib.Meta.Positivity.CachedResult.recOn
+Mathlib.Meta.Positivity.CachedResult.toString
+Mathlib.Meta.Positivity.PositivityM
+Mathlib.Meta.Positivity.State
+Mathlib.Meta.Positivity.State.cache
+Mathlib.Meta.Positivity.State.casesOn
+Mathlib.Meta.Positivity.State.ctorIdx
+Mathlib.Meta.Positivity.State.failureCache
+Mathlib.Meta.Positivity.State.mk
+Mathlib.Meta.Positivity.State.mk.inj
+Mathlib.Meta.Positivity.State.mk.injEq
+Mathlib.Meta.Positivity.State.mk.noConfusion
+Mathlib.Meta.Positivity.State.mk.sizeOf_spec
+Mathlib.Meta.Positivity.State.noConfusion
+Mathlib.Meta.Positivity.State.noConfusionType
+Mathlib.Meta.Positivity.State.rec
+Mathlib.Meta.Positivity.State.recOn
+Mathlib.Meta.Positivity.cacheFailure
+Mathlib.Meta.Positivity.cacheInfo
+Mathlib.Meta.Positivity.cacheStrictness
+Mathlib.Meta.Positivity.catchNone'
+Mathlib.Meta.Positivity.findCached?

---

No changes to strong technical debt.
No changes to weak technical debt.

Current commit 58cc9c8f96
Reference commit 9454a4c25a

This script lives in the mathlib-ci repository. To run it locally, from your mathlib4 directory:

git clone https://github.com/leanprover-community/mathlib-ci.git ../mathlib-ci
../mathlib-ci/scripts/reporting/technical-debt-metrics.py pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[HugLycan]

!bench

[leanprover-radar]

Benchmark results for 9060034 against 9454a4c are in. There are significant results. @HugLycan

• 🟥 build//instructions: +19.4G (+0.02%)

Large changes (1🟥)

• 🟥 build/module/Mathlib.Tactic.Positivity.Basic//instructions: +5.9G (+15.29%)

Small changes (26✅, 83🟥)

• 🟥 build/module/Mathlib.Algebra.Module.CharacterModule//instructions: +153.3M (+0.72%)
• 🟥 build/module/Mathlib.Algebra.Order.AbsoluteValue.Basic//instructions: +58.2M (+0.46%)
• 🟥 build/module/Mathlib.Algebra.Order.Algebra//instructions: +275.6M (+3.58%) (reduced significance based on *//lines)
• 🟥 build/module/Mathlib.Algebra.Order.BigOperators.Expect//instructions: +253.8M (+1.79%) (reduced significance based on absolute threshold)
• 🟥 build/module/Mathlib.Algebra.Order.BigOperators.Ring.Finset//instructions: +348.7M (+2.08%) (reduced significance based on absolute threshold)
• 🟥 build/module/Mathlib.Algebra.Order.Field.Basic//instructions: +523.2M (+1.36%) (reduced significance based on absolute threshold)
• 🟥 build/module/Mathlib.Algebra.Order.Field.Power//instructions: +342.3M (+3.64%) (reduced significance based on absolute threshold)
• 🟥 build/module/Mathlib.Algebra.Order.Floor.Extended//instructions: +119.8M (+1.03%) (reduced significance based on *//lines)
• 🟥 build/module/Mathlib.Algebra.Order.Floor.Ring//instructions: +401.2M (+1.13%) (reduced significance based on *//lines)
• 🟥 build/module/Mathlib.Algebra.Order.Interval.Basic//instructions: +101.6M (+0.52%)
• 🟥 build/module/Mathlib.Algebra.Order.Module.Field//instructions: +233.3M (+3.26%) (reduced significance based on absolute threshold)
• ✅ build/module/Mathlib.Algebra.Order.Monoid.Units//instructions: -47.3M (-1.27%)
• 🟥 build/module/Mathlib.Algebra.Star.CHSH//instructions: +49.4M (+0.51%)
• ✅ build/module/Mathlib.AlgebraicGeometry.AlgebraicCycle.Basic//instructions: -31.5M (-0.42%)
• ✅ build/module/Mathlib.AlgebraicGeometry.EffectiveEpi//instructions: -78.6M (-0.90%)
• ✅ build/module/Mathlib.AlgebraicGeometry.Morphisms.FiniteType//instructions: -29.2M (-0.34%)
• ✅ build/module/Mathlib.AlgebraicGeometry.Morphisms.WeaklyEtale//instructions: -41.8M (-0.67%) (reduced significance based on absolute threshold)
• 🟥 build/module/Mathlib.AlgebraicGeometry.Sites.BigZariski//instructions: +34.3M (+0.48%)
• 🟥 build/module/Mathlib.AlgebraicTopology.SimplexCategory.DeltaZeroIter//instructions: +78.3M (+0.42%)
• 🟥 build/module/Mathlib.AlgebraicTopology.SimplexCategory.Rev//instructions: +77.9M (+1.55%) (reduced significance based on absolute threshold)
• and 89 more